M426082 五、新型說明： 【新型所屬之技術領域】 本創作是有關於一種觸控面板及應用其之觸控顯示 面板，且特別是有關於一種具有訊號傳輸線之觸控面板及 應用其之觸控顯示面板。 【先前技術】 傳統的觸控面板包括基板、感應層及數條訊號傳輸 線，其中，訊號傳輸線及感應層皆形成於同一基板上。訊 號傳輸線連接於感應層，以傳輸感應層之觸控訊號給一電 路板。 然而，礙於觸控面板的尺寸限制，每條訊號傳輸線的 寬度甚細，如此，訊號傳輸線的阻值係大，不利於觸控訊 號的傳輸品質。 【新型内容】 本創作係有關於一種觸控面板及應用其之觸控顯示 面板，訊號傳輸線的阻值小，有助於提升觸控訊號的傳輸 品質。 根據本創作之一實施例，提出一種觸控面板。觸控面 板包括一蓋板及一觸控基板。蓋板包括一第一基材及一訊 號線層。訊號線層形成於第一基材之一邊緣。觸控基板連 接於蓋板且包括一第二基材及一感應結構層。感應結構層 形成於第二基材上。 M426082 根據本創作之另一實施例，提出—種觸控顯示面板。 觸控，示面板包括—顯示面板及—觸控面板。觸控面板包. 括-蓋板及-觸控基板。蓋板包括—第—基材及—訊號線 ^。汛號線層形成於第一基材之一邊緣。觸控基板連接於 息板且包括一第二基材及一感應結構層。感應結構層形成 於第二基材上。 為讓本創作之上述内容能更明顯易懂，下 例’並配合所附圖式，作詳細說明如下： 只e 【實施方式】 _請參照第1圖，其繪示依照本創作一實施例之觸控顯 示面板剖視圖。觸控顯示面板100包括顯示面板110、觸 控面板120、訊號線層130及黏合件15〇。顯示面板 與觸控面板120透過黏合件150黏合，其中黏合件15〇例 如疋雙面膠（Double Sided Adhesive，DSA )。 顯不面板110例如是電泳式顯示器、膽固醇液晶顯示 器、液晶顯示器、雙穩態顯示器、多穩態顯示器、有機$ 光二極體（Organic Light-Emitting Diode，OLED)顯示器、於 光二極體(Light-Emitting Diode，LED)顯示器或其它種, 顯示面板。 觸控面板120可以是電阻式觸控面板或電容式觸押面 板，本實施例係以電容式觸控面板為例說明。 如第1圖所示，觸控面板120包括蓋板121及觸押& 板122 ’觸控基板122可透過一光學透明膠（未綠示）^ M426082 定於蓋板121。 請參照第2圖，其繪示第1圖之觸控基板及蓋板的外 觀圖。觸控基板122包括第二基材1221及感應結構層 1222。 第二基材1221為透明基板，其材質包括高透光率的 絕緣性材料，例如是玻璃、聚碳酸酯（Poly carbonate，PC )、 聚酯（Polythylene terephthalate，PET )、聚甲基丙烯酸曱醋 (Polymethylmethacrylate, PMMA )或環烯烴共聚合物 (Cyclic Olefin Copolymer)等材料。 第二基材1221具有一上表面1221u，感應結構層1222 形成於第二基材1221之上表面1221u上。本實施例中， 上表面l22lu定義感應區1221a及邊緣122p，感應結構層 1222形成於感應區1221a内。感應結構層1222可感應手 指或觸控筆之觸控，並傳輸對應之觸控訊號至訊號線層 130。 感應結構層1222包括數個第—感應結構123及數個 第二感應結構124。各第一感應結構123沿第一方向D1 延伸且包括數條第一橋接線1231及數個第一感應單元 1232。相鄰一第一感應單元1232由對應之第一橋接線1231 連接。該些第一感應結構123可感應手指或觸控筆之觸 控，並沿第一方向D1傳輸對應之觸控訊號至訊號線層 130。 該些第一橋接線1231包括數條第一邊緣連接線 1231’，該些第一邊緣連接線1231’形成於第二基材1221 之邊緣122p’以連接於訊號線層13〇，如此一來，第一感 應結構123可傳輪觸控訊號給訊號線層130。 各第二感應結構124沿第二方向D2延伸且包括數個 數條第二橋接線1241及數個第二感應單元1242。相鄰二 感應單兀1242由對應之第二橋接線1241連接。該些 第一感應結構124可感應手指或觸控筆之觸控，並沿第二 方向D2傳輸對應之觸控訊號至訊號線層ι3〇。 該些第二橋接線1241包括數條第二邊緣連接線 φ 1241’ ’該些第二邊緣連接線1241，形成於第二基材1221 之邊緣122ρ ’以連接於訊號線層13〇，如此一來，第二感 應結構124可傳輸觸控訊號給訊號線層130。 此外’第一橋接線1231與第二橋接線1241可由一絕 緣層（未繪示）電性隔離，避免第一感應結構123與第二 感應結構12 4彼此接觸而短路。 此外’第一感應單元1232及第二感應單元1242的材 料例如是透明導電材料（Transparent Conductive Oxide; TC0)或透明的有機導電材料，其中，透明導電材料如銦錫 _ 氧化物（Indium Tin Oxide, IT0)或銦鋅氧化物（indium zinc oxide，IZO )，而透明的有機導電材料例如是聚乙撑二氧嗔 吩（PEDOT)。第一橋接線1231及第二橋接線1241的材 質例如是金屬或透明導電材料，其中金屬可選自於由鈦、 鋁、鉬、銅、銀及其組合所構成的群組。此外，第一橋接 線1231及第二橋接線1241可以是單層或多層結構。 訊號線層130的材質包括上述金屬。訊號線層130可 形成於顯示面板110與蓋板121之至少一者的邊緣，本實 施例係以形成於蓋板121之邊緣121p為例說明，如下說 明。 如第2圖所示，蓋板121包括第一基材ΐ2ιι，第一 基材uu具有一下表面1211b。第一基材ΐ2ιι的材質相 似於第二基材1221，容此不再贅述。 如第2圖所示，第一基材1211之下表面12nb的面 積大於第一基材1221之上表面122lu的面積，其中，下 表面1211b之感應區1211a的面積與第二基材丨221之上表 面122lu的面積接近，而訊號線層13〇形成於第一基材 1211之下表面1211b的邊緣121p。 如第2圖所示，訊號線層130包括數條第一訊號線 131及第二訊號線132。以第一訊號線131為例說明，相 較於傳統之第一訊號線131形成於第一基材12n上，本 實施例之第一訊號線131形成於蓋板121上，使第一訊號 線131的舖設區域可以較寬廣，如此一來，單條第一訊號 線丨31的寬度可設計得較寬，以降低感應結構層1222及 訊號線層130整體的阻值。一實施例中，當第一訊號線ι31 係金屬訊號線時，其寬度可大於30微米（傳統設計中， 因礙於觸控面板的尺寸限制，故金屬訊號線的寬度小於3〇 微米）；當第一訊號線131係透明訊號線時，其寬度可大 於15 0微米（傳統設計中，因礙於觸控面板的尺寸限制， 故透明訊號線的寬度小於150微米）。至於第一訊號線131 的寬度上限可視基板尺寸而定，本實施例不加以限定。此 外’第二訊號線132相似於第一訊號緣131，容此不再贅 述。 本實施例中，藉由將訊號線層130形成於觸控基板 一〆乂外的元件來降低整體的阻值，故即使感應單元（第 ^應單70 1232及/或第二感應單元1242)的厚度可小於 =不米（傳統設計中，至少大於35奈米），整體阻值仍可 維持在預期或預設的範圍内。 ，第2圖所示，觸控面板12〇更包括一電路板14〇， 例=疋軟性電路板（Flexible Printed Circuit board, FPC)。 f實施例中，電路板140連接於蓋板121，訊號線層i3〇 =接於電路板14G ’以電性連毅電路板⑽。來自於威 二結構層1222 _控訊號（未㈣）經由訊i線層13〇 傳輸至電路板140。 如第/圖所示’蓋板121更包括遮光層125(由於遮光 層125被第一基材1211遮住，故從第2圖看不到全部的 遮光層125)，其形成於第一基材1211之下表面1211b之 邊緣121p，其中訊號線層13〇的位置可對應遮光層IK， 避免訊號線層130從外觀上暴露出來。本實施例中，訊號 線層130形成於第一基材1211之下表面121沁上而遮 光層125覆蓋訊號線層13〇。另一實施例中，遮光層125 可先形成於苐一基材12Π之下表面12nb上，然後訊號 線層130再埋入遮光層125内。此外，遮光層125例如是 黑色矩陣（BM)。 遮光層125可僅對應訊號線層13〇的區域；或者，遮 光層125例如是環形遮光層，其對應於第一基材1211之 下表面1211b的整個邊緣。 唬線層130的材質可以是任何導電材料，例如是 銅。在讯號線層130的形成方法中，可例如利用化學氣相 M426082 沈積、無電鑛法（electroless plating)、電解電鍍（electrolytic plating)、印刷、旋塗、喷塗、藏鍍（sputtering)或真空 沈積法（vacuum deposition)形成一導電材料於第一基材 1211上。然後，採用例如是例如是微影製程 (photolithography)、化學钱刻（chemical etching)、雷射 鑽孔（laser drilling)或機械鑽孔（mechanical drilling)。 圖案化該導電材料，以形成訊號線層130。另一實施例中， 訊號線層130係圖案化銅箔層，其可採用例如是轉印方式 形成。 請參照第3圖（未纟會示遮光層），其繪示第2圖之觸 控基板與蓋板組合的俯視圖。 觸控基板122中各第一邊緣連接線1231’連接蓋板 121中對應之第一訊號線131且觸控基板122中各第二邊 緣連接線1241’連接蓋板121中對應之第二訊號線132,使 觸控訊號經由感應結構層1222及訊號線層130傳輸至電 路板140。 請參照第4圖，其繪示依照本創作另一實施例之觸控 顯示面板剖視圖。觸控顯示面板200包括顯示面板210、 觸控面板220、訊號線層230及黏合件150。顯示面板210 與觸控面板220透過黏合件150黏合。 觸控面板220包括蓋板221及觸控基板222，觸控基 板222可透過一光學透明膠（未繪示）固定於蓋板221。 請參照第5圖’其繪示第4圖之觸控基板的外觀圖。 觸控基板222包括第二基材1221及感應結構層1222。本 實施例中’感應結構層1222形成於觸控基板222之雙面， M426082 • · 如下說明。 第一基材1221具有相對之上表面i221u與下表面 1221b。感應結構層1222包括數個第二感應結構124 ,第 二感應結構124形成於第二基材1221之下表面1221b。 弟一感應結構124沿苐二方向D2延伸且包括數個數 條第二橋接線1241及數個第二感應單元1242。相鄰二第 二感應單元1242由對應之第二橋接線1241連接。該些第 一感應結構124可感應手指或觸控筆之觸控，並沿第二方 向D2傳輸對應之觸控訊號。 該些第二橋接線1241包括數條第二邊緣連接線 。 1241’ ’該些第二邊緣連接線1241，形成於第二基材i22i 之邊緣122p2’亦即，第二邊緣連接線1241，係往上延伸至 邊緣122p2。另一實施例中，邊緣122p2亦可為第二基材 1221的下邊緣，亦即，第二邊緣連接線1241，可往下延伸 至邊緣122p2。 請參照第6圖，其繪示第4圖之觸控顯示面板的分解 圖（僅繪示顯示面板、觸控面板及蓋板）。感應結構層1222 更包括數個第一感應結構123，第—感應結構123形成於 第二基材1221之上表面1221u(第6圖所看到的第二基材 1221係第5圖之第二基材1221的背面）。 各第一感應結構123沿第一方向D1延伸且包括數條 第一橋接線1231及數個第一感應單元1232。相鄰二第一 感應單元1232由對應之第一橋接線丨231連接。該些第一 感應結構123可感應手指或觸控筆之觸控，並沿第一方向 D1傳輸對應之觸控訊號至訊號線層BO。 11 M426082 ，該些第一橋接線丨23〗包括數條第一邊緣連接線 1231’，該些第—邊緣連接線咖，形成於第二基材mi 之邊緣122p卜亦即’第-邊緣連接線ΐ23ι，係往右延伸至 邊緣122P1。另—實施例中，邊緣122pl亦可為第二基材 1221的左邊緣’亦即，第二邊緣連接線1241’可往右延伸 至邊緣122pl。 如第6圖所示，本實施例之訊號線層13〇形成於分離 之一 70件上，例如是形成於顯示面板210及蓋板221。 訊唬線層130包括數條第一訊號線131及數條第二訊 ，線132。第一訊號線131形成於蓋板221上，且連接於 第一感應結構123，例如是連接於對應之第一邊緣連接線 1231 (相似於第3圖之結構）。第二訊號線形成於顯 不面板210上且連接於第二感應結構124 (第二感應結構 124繪示於第5圖）’例如是連接於對應之第二邊緣連接線 1241，（相似於第3圖之結構）。 顯示面板210具有上表面21 〇u ’訊號線層13〇形成 於顯示面板210之上表面21〇u上，其中，顯示面板21〇 之上表面210u的面積大於第二基材1221之下表面1221b 的面積。其中，上表面21 〇u之感應區21〇a的面積與第二 基材1221之下表面1221b的面積接近，而第二訊號線ι32 形成於顯示面板210具有上表面21 〇u的邊緣210p。 如第6圖所示，第一訊號線ηι延伸至電路板14〇， 使觸控訊號經由第一感應結構123及第一訊號線131傳輸 至電路板140。此外，顯示面板21〇更包括一電路板160， 第二訊號線132連接於電路板160，以電性連接於電路板 12 M426082 160,使觸控訊號經由第二感應結構124及第二訊號線132 傳輸至電路板160‘·4。電路板160可相似於電路板140，容 此不再贅述。 本實施例中，遮光層125形成於蓋板221之第一基材 1211之下表面121 lb之邊緣121pl(由於遮光層125被第一 基材1211遮住，故從第6圖看不到全部的遮光層125)並 覆蓋第一訊號線131，避免第一訊號線131從外觀上暴露 出來。另一實施例中，遮光層125可形成於顯示面板210 • 之邊緣210p並覆蓋第二訊號線132，避免第二訊號線132 從外觀上暴露出來。 本創作上述實施例所揭露之觸控面板及應用其之觸 控顯示面板，訊號傳輸線的阻值小，有助於提升觸控訊號 的傳輸品質。 綜上所述，雖然本創作已以實施例揭露如上，然其並 非用以限定本創作。本創作所屬技術領域中具有通常知識 者，在不脫離本創作之精神和範圍内，當可作各種之更動 ® 與潤飾。因此，本創作之保護範圍當視後附之申請專利範 圍所界定者為準。 【圖式簡單說明】 第1圖繪示依照本創作一實施例之觸控顯示面板剖 視圖。 第2圖繪示第1圖之觸控基板及蓋板的外觀圖。 第3圖（未繪示遮光層）繪示第2圖之觸控基板與蓋 13 M426082 板組合的俯視圖。 第4圖繪示依照本創作另一實施例之觸控顯示面板 剖視圖。 第5圖繪示第4圖之觸控基板的外觀圖。 第6圖繪示第4圖之觸控顯示面板的分解圖（僅繪示 顯示面板、觸控面板及蓋板）。 【主要元件符號說明】 100、200 :觸控顯示面板 110、210 :顯示面板 120、 220 :觸控面板 121、 221 :蓋板 1211 :第一基材 1211b、1221b :下表面 122、 222 :觸控基板 121p、122p、210p :邊緣 1211a、1221a :感應區 1221u、210u :上表面 1222 :感應結構層 123 :第一感應結構 1231 :第一橋接線 1231’ ：第一邊緣連接線 1232 :第一感應單元 124 :第二感應結構 M426082 :第二橋接線 :第二邊緣連接線 :第二感應單元 遮光層 230 :訊號線層 第一訊號線 第二訊號線 160 :電路板 黏合件 第一方向 第二方向 15M426082 V. New Description: [New Technology Area] The present invention relates to a touch panel and a touch display panel using the same, and particularly relates to a touch panel having a signal transmission line and a touch applied thereto Display panel. [Previous Art] A conventional touch panel includes a substrate, a sensing layer, and a plurality of signal transmission lines, wherein the signal transmission line and the sensing layer are formed on the same substrate. The signal transmission line is connected to the sensing layer to transmit the touch signal of the sensing layer to a circuit board. However, due to the size limitation of the touch panel, the width of each signal transmission line is very small. Thus, the resistance of the signal transmission line is large, which is not conducive to the transmission quality of the touch signal. [New Content] This creation is about a touch panel and a touch display panel using the same. The resistance of the signal transmission line is small, which helps to improve the transmission quality of the touch signal. According to an embodiment of the present invention, a touch panel is proposed. The touch panel includes a cover and a touch substrate. The cover plate includes a first substrate and a signal line layer. The signal line layer is formed on one of the edges of the first substrate. The touch substrate is coupled to the cover and includes a second substrate and a sensing structure layer. An inductive structural layer is formed on the second substrate. M426082 According to another embodiment of the present invention, a touch display panel is proposed. The touch panel includes a display panel and a touch panel. Touch panel package. Includes - cover and - touch substrate. The cover plate includes a - a substrate and a signal line ^. An enamel line layer is formed on one of the edges of the first substrate. The touch substrate is coupled to the polysilicon and includes a second substrate and a sensing structure layer. The sensing structure layer is formed on the second substrate. In order to make the above content of the creation more obvious and easy to understand, the following example 'with the accompanying drawings, the detailed description is as follows: only e [embodiment] _ please refer to FIG. 1 , which illustrates an embodiment according to the present creation A cross-sectional view of the touch display panel. The touch display panel 100 includes a display panel 110, a touch panel 120, a signal line layer 130, and an adhesive member 15A. The display panel and the touch panel 120 are bonded through the adhesive member 150, such as a double side adhesive (DSA). The display panel 110 is, for example, an electrophoretic display, a cholesteric liquid crystal display, a liquid crystal display, a bi-stable display, a multi-stable display, an Organic Light-Emitting Diode (OLED) display, and a light diode (Light- Emitting Diode, LED) display or other kind, display panel. The touch panel 120 can be a resistive touch panel or a capacitive touch panel. This embodiment uses a capacitive touch panel as an example. As shown in FIG. 1, the touch panel 120 includes a cover 121 and a touch panel 122. The touch substrate 122 is disposed on the cover 121 through an optically transparent adhesive (not shown). Referring to FIG. 2, an external view of the touch substrate and the cover of FIG. 1 is shown. The touch substrate 122 includes a second substrate 1221 and an inductive structure layer 1222. The second substrate 1221 is a transparent substrate, and the material thereof comprises an insulating material with high light transmittance, such as glass, polycarbonate, PC, polythylene terephthalate (PET), polymethyl methacrylate vinegar. (Polymethylmethacrylate, PMMA) or a cyclic olefin copolymer (Cyclic Olefin Copolymer) and other materials. The second substrate 1221 has an upper surface 1221u, and the sensing structure layer 1222 is formed on the upper surface 1221u of the second substrate 1221. In this embodiment, the upper surface l22lu defines a sensing area 1221a and an edge 122p, and the sensing structure layer 1222 is formed in the sensing area 1221a. The sensing structure layer 1222 can sense the touch of the finger or the stylus and transmit the corresponding touch signal to the signal line layer 130. The sensing structure layer 1222 includes a plurality of first sensing structures 123 and a plurality of second sensing structures 124. Each of the first sensing structures 123 extends along the first direction D1 and includes a plurality of first bridge lines 1231 and a plurality of first sensing units 1232. The adjacent first sensing unit 1232 is connected by the corresponding first bridge line 1231. The first sensing structures 123 can sense the touch of the finger or the stylus and transmit the corresponding touch signals to the signal line layer 130 along the first direction D1. The first bridge wires 1231 include a plurality of first edge connection lines 1231 ′, and the first edge connection lines 1231 ′ are formed on the edge 122 p ′ of the second substrate 1221 to be connected to the signal line layer 13 〇. The first sensing structure 123 can transmit the touch signal to the signal line layer 130. Each of the second sensing structures 124 extends along the second direction D2 and includes a plurality of second bridge wires 1241 and a plurality of second sensing cells 1242. The adjacent two sensing units 1242 are connected by the corresponding second bridges 1241. The first sensing structures 124 can sense the touch of the finger or the stylus and transmit the corresponding touch signal to the signal line layer ι3 沿 in the second direction D2. The second bridge wires 1241 include a plurality of second edge connection lines φ 1241 ′′. The second edge connection lines 1241 are formed on the edge 122 ρ′ of the second substrate 1221 to be connected to the signal line layer 13 , such that The second sensing structure 124 can transmit the touch signal to the signal line layer 130. In addition, the first bridge wire 1231 and the second bridge wire 1241 can be electrically isolated by an insulating layer (not shown) to prevent the first sensing structure 123 and the second sensing structure 12 4 from contacting each other and short-circuiting. In addition, the material of the first sensing unit 1232 and the second sensing unit 1242 is, for example, a Transparent Conductive Oxide (TC0) or a transparent organic conductive material, wherein a transparent conductive material such as Indium Tin Oxide (Indium Tin Oxide, IT0) or indium zinc oxide (IZO), and the transparent organic conductive material is, for example, polyethylene dioxy porphin (PEDOT). The material of the first bridge wire 1231 and the second bridge wire 1241 is, for example, a metal or a transparent conductive material, wherein the metal may be selected from the group consisting of titanium, aluminum, molybdenum, copper, silver, and combinations thereof. Further, the first bridge line 1231 and the second bridge line 1241 may be a single layer or a multilayer structure. The material of the signal line layer 130 includes the above metal. The signal line layer 130 can be formed on the edge of at least one of the display panel 110 and the cover plate 121. This embodiment is described by taking the edge 121p formed on the cover plate 121 as an example, as follows. As shown in Fig. 2, the cover plate 121 includes a first substrate ΐ2ι, and the first substrate uu has a lower surface 1211b. The material of the first substrate ΐ2 ι is similar to that of the second substrate 1221, and will not be described again. As shown in FIG. 2, the area of the lower surface 12nb of the first substrate 1211 is larger than the area of the upper surface 122lu of the first substrate 1221, wherein the area of the sensing area 1211a of the lower surface 1211b and the second substrate 221 The area of the upper surface 122lu is close, and the signal line layer 13 is formed on the edge 121p of the lower surface 1211b of the first substrate 1211. As shown in FIG. 2, the signal line layer 130 includes a plurality of first signal lines 131 and second signal lines 132. Taking the first signal line 131 as an example, the first signal line 131 is formed on the first substrate 12n, and the first signal line 131 of the embodiment is formed on the cover plate 121 to make the first signal line. The laying area of the 131 can be wider, so that the width of the single first signal line 31 can be designed to be wider to reduce the resistance of the sensing structure layer 1222 and the signal line layer 130 as a whole. In one embodiment, when the first signal line ι31 is a metal signal line, the width thereof may be greater than 30 micrometers (in the conventional design, the width of the metal signal line is less than 3 micrometers due to the size limitation of the touch panel); When the first signal line 131 is a transparent signal line, the width thereof can be greater than 150 micrometers (in the conventional design, the width of the transparent signal line is less than 150 micrometers due to the size limitation of the touch panel). The upper limit of the width of the first signal line 131 depends on the size of the substrate, and is not limited in this embodiment. The second signal line 132 is similar to the first signal edge 131, and will not be described again. In this embodiment, the overall resistance value is reduced by forming the signal line layer 130 on the outer surface of the touch substrate, so even the sensing unit (the first unit 70 1232 and/or the second sensing unit 1242) The thickness can be less than = not meters (in the traditional design, at least greater than 35 nm), the overall resistance can still be maintained within the expected or preset range. As shown in FIG. 2, the touch panel 12 further includes a circuit board 14 〇, for example, a Flexible Printed Circuit Board (FPC). In the embodiment, the circuit board 140 is connected to the cover plate 121, and the signal line layer i3〇 is connected to the circuit board 14G' to electrically connect the circuit board (10). The control layer 1222_control signal (not (4)) is transmitted to the circuit board 140 via the i-line layer 13A. As shown in the figure, the cover plate 121 further includes a light shielding layer 125 (the light shielding layer 125 is blocked by the first base material 1211, so that no light shielding layer 125 is visible from the second drawing), which is formed on the first base. The edge 121p of the lower surface 1211b of the material 1211, wherein the position of the signal line layer 13 is corresponding to the light shielding layer IK, prevents the signal line layer 130 from being exposed from the appearance. In this embodiment, the signal line layer 130 is formed on the lower surface 121 of the first substrate 1211 and the light shielding layer 125 covers the signal line layer 13A. In another embodiment, the light shielding layer 125 may be formed on the lower surface 12nb of the substrate 12, and then the signal layer 130 is buried in the light shielding layer 125. Further, the light shielding layer 125 is, for example, a black matrix (BM). The light shielding layer 125 may correspond to only the area of the signal line layer 13A; or, the light shielding layer 125 is, for example, an annular light shielding layer corresponding to the entire edge of the lower surface 1211b of the first substrate 1211. The material of the twist layer 130 may be any conductive material such as copper. In the method of forming the signal line layer 130, for example, chemical vapor phase M426082 deposition, electroless plating, electrolytic plating, printing, spin coating, spray coating, sputtering or vacuum may be utilized. A vacuum deposition forms a conductive material on the first substrate 1211. Then, for example, photolithography, chemical etching, laser drilling, or mechanical drilling is employed. The conductive material is patterned to form a signal line layer 130. In another embodiment, the signal line layer 130 is a patterned copper foil layer that can be formed, for example, by transfer. Please refer to Fig. 3 (the light shielding layer is shown in the future), which shows a plan view of the combination of the touch control substrate and the cover of Fig. 2. Each of the first edge connection lines 1231 ′ of the touch panel 122 is connected to the corresponding first signal line 131 of the cover plate 121 , and each second edge connection line 1241 ′ of the touch substrate 122 is connected to the corresponding second signal line of the cover plate 121 . The touch signal is transmitted to the circuit board 140 via the sensing structure layer 1222 and the signal line layer 130. Please refer to FIG. 4, which is a cross-sectional view of a touch display panel according to another embodiment of the present invention. The touch display panel 200 includes a display panel 210 , a touch panel 220 , a signal line layer 230 , and an adhesive 150 . The display panel 210 and the touch panel 220 are bonded through the adhesive 150. The touch panel 220 includes a cover 221 and a touch substrate 222. The touch panel 222 is fixed to the cover 221 through an optical transparent adhesive (not shown). Please refer to FIG. 5 for an external view of the touch substrate of FIG. 4. The touch substrate 222 includes a second substrate 1221 and an inductive structure layer 1222. In the present embodiment, the sensing structure layer 1222 is formed on both sides of the touch substrate 222, M426082 • as explained below. The first substrate 1221 has a relatively upper surface i221u and a lower surface 1221b. The sensing structure layer 1222 includes a plurality of second sensing structures 124, and the second sensing structures 124 are formed on the lower surface 1221b of the second substrate 1221. The sensing structure 124 extends along the second direction D2 and includes a plurality of second bridge lines 1241 and a plurality of second sensing units 1242. The adjacent two second sensing units 1242 are connected by corresponding second bridge wires 1241. The first sensing structures 124 can sense the touch of the finger or the stylus and transmit the corresponding touch signals along the second direction D2. The second bridge wires 1241 include a plurality of second edge connection lines. The second edge connecting lines 1241 are formed on the edge 122p2' of the second substrate i22i, that is, the second edge connecting line 1241, extending upward to the edge 122p2. In another embodiment, the edge 122p2 may also be the lower edge of the second substrate 1221, that is, the second edge connecting line 1241 may extend downward to the edge 122p2. Please refer to FIG. 6 , which is an exploded view of the touch display panel of FIG. 4 (only the display panel, the touch panel and the cover plate are shown). The sensing structure layer 1222 further includes a plurality of first sensing structures 123. The first sensing structure 123 is formed on the upper surface 1221u of the second substrate 1221. (The second substrate 1221 seen in FIG. 6 is the second image of FIG. The back side of the substrate 1221). Each of the first sensing structures 123 extends along the first direction D1 and includes a plurality of first bridge lines 1231 and a plurality of first sensing units 1232. The adjacent two first sensing units 1232 are connected by corresponding first bridge wires 231. The first sensing structure 123 can sense the touch of the finger or the stylus and transmit the corresponding touch signal to the signal line layer BO along the first direction D1. 11 M426082, the first bridge wires 23 include a plurality of first edge connecting lines 1231 ′, and the first edge connecting wires are formed on the edge 122p of the second substrate mi, that is, the “first-edge connection” The line ΐ 23ι extends to the right to the edge 122P1. In another embodiment, the edge 122pl may also be the left edge of the second substrate 1221. That is, the second edge connection line 1241' may extend to the right to the edge 122pl. As shown in Fig. 6, the signal line layer 13 of the present embodiment is formed on one of the 70 pieces, for example, formed on the display panel 210 and the cover plate 221. The signal line layer 130 includes a plurality of first signal lines 131 and a plurality of second signals, lines 132. The first signal line 131 is formed on the cover 221 and is connected to the first sensing structure 123, for example, to the corresponding first edge connecting line 1231 (similar to the structure of FIG. 3). The second signal line is formed on the display panel 210 and is connected to the second sensing structure 124 (the second sensing structure 124 is shown in FIG. 5)', for example, connected to the corresponding second edge connection line 1241, (similar to the first 3 structure of the figure). The display panel 210 has an upper surface 21 〇u 'signal line layer 13 〇 formed on the upper surface 21 〇 u of the display panel 210, wherein the surface of the upper surface 210u of the display panel 21 is larger than the lower surface 1221b of the second substrate 1221. Area. The area of the sensing area 21〇a of the upper surface 21〇u is close to the area of the lower surface 1221b of the second substrate 1221. The second signal line ι32 is formed on the edge 210p of the display panel 210 having the upper surface 21〇u. As shown in FIG. 6, the first signal line ηι extends to the circuit board 14A, so that the touch signal is transmitted to the circuit board 140 via the first sensing structure 123 and the first signal line 131. In addition, the display panel 21 further includes a circuit board 160. The second signal line 132 is connected to the circuit board 160 to be electrically connected to the circuit board 12 M426082 160, so that the touch signal is transmitted through the second sensing structure 124 and the second signal line. 132 is transferred to the board 160'·4. The circuit board 160 can be similar to the circuit board 140 and will not be described again. In this embodiment, the light shielding layer 125 is formed on the edge 121 pl of the lower surface 121 lb of the first substrate 1211 of the cover plate 221 (since the light shielding layer 125 is covered by the first substrate 1211, not all of them can be seen from FIG. The light shielding layer 125) covers the first signal line 131 to prevent the first signal line 131 from being exposed from the appearance. In another embodiment, the light shielding layer 125 can be formed on the edge 210p of the display panel 210 and cover the second signal line 132 to prevent the second signal line 132 from being exposed from the appearance. In the touch panel disclosed in the above embodiments and the touch control display panel using the same, the resistance of the signal transmission line is small, which helps to improve the transmission quality of the touch signal. In summary, although the present invention has been disclosed above by way of example, it is not intended to limit the present invention. Those of ordinary skill in the art to which this creation pertains can make various changes and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the patent application scope attached. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a touch display panel according to an embodiment of the present invention. FIG. 2 is a view showing the appearance of the touch substrate and the cover of FIG. 1 . Figure 3 (not shown the light-shielding layer) shows a top view of the combination of the touch substrate of Figure 2 and the cover 13 M426082. 4 is a cross-sectional view of a touch display panel according to another embodiment of the present invention. FIG. 5 is a view showing the appearance of the touch substrate of FIG. 4. FIG. 6 is an exploded view of the touch display panel of FIG. 4 (only the display panel, the touch panel, and the cover) are shown. [Main component symbol description] 100, 200: touch display panel 110, 210: display panel 120, 220: touch panel 121, 221: cover 1211: first substrate 1211b, 1221b: lower surface 122, 222: touch Control substrate 121p, 122p, 210p: edge 1211a, 1221a: sensing area 1221u, 210u: upper surface 1222: sensing structure layer 123: first sensing structure 1231: first bridge line 1231': first edge connection line 1232: first Induction unit 124: second inductive structure M426082: second bridge connection: second edge connection line: second inductive unit shading layer 230: signal line layer first signal line second signal line 160: circuit board bonding member first direction Two directions 15